Chain pipe-vise or the like.



- G. AMBORN. CHAIN PIPE VISB OR THE LIKE. APPLICATION FILED DEC. 27,1911.

1,054,958, Patented Mar. 4, 1913.

- ,INVENTOR WITNESSES: l? MW vise,

. ening the chain are a signed to engage one the opposite end isprovided with a take-up.

to pass around the pipe to UNITED s A Es PATENT OFFICE. I

GEORGE AMBORN, or CHAPINVILLE, coivivncricu'r, ASSIQGNOR 'ro J. H.WILLIAMS &

(30., 0F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

CHAIN PIPE-VISE OR"lIi-IE LIKE.

Specification of Letters Patent. I

Patented Mar. 4, 1913.

Application filed December 27, 1911. Serial No. 668,059.

To all whom it may concern: I

Be it known that I, GEORGE AMBoRN, a citizen of the United States,residing in Chapinville, in the county of Litchfield and State ofConnecticut, have invented certain new and useful Improvements in' ChainPipe-Vises or the Like, of which the following is a specification. e I

In the common form of chain pipe vise two jaws are provided which areformed with working faces adapted to engage the pipe, the latter beingheld against the working faces by a chain passing around the ipe. It isusual to provide the bed plate of the structure with a lock or locksdeend of the chain while mechanism adapted to tighten the chain.

According to the present invention I pro vide a vise in which one end ofthe chain is fixedly secured to the bed plate of the the other end beingadapted to be looked as is usual. The adjustments for tighteffected by abodily the latter being conbed plateby a pivadapted to persuitabletake-up movement of the jaws, nected at one end to the otal connectionwhich is mit theaws to rock. Any

mechanism is provided,preferably a screw,

which operates against the under side of the jaws- The inventionincludes certain other improvements which will be here-inafter referredto.

- Referring to the drawings which illustrate one embodiment of theinvention, Figure 1 is an end elevation of the vise. Fig. 2 is a frontelevation.

Referring to the drawings, let A indicate a suitable bed plate, B B.the'jaws having working faces G, and D a, chain adapted clamp the sameof the chain D upon the aws. One end,

is preferablyfixed to the bed plate, preferably by a pin E which passesthroughlugs F F formed on or carried by the bed plate.

The opposite slde of the bed plate is provided with a locker locks G Gdesigned to adjustably engage the free end of the chain D. According tothe present invention the chain is tightened on the ,pipe by a tiltingmovement of the jaws. For this purpose the jaws are pivotally connectedwith the bed plate, which may be conveniently done in the presentstructure by means of the pin E which is extended beyond the lugs F Fgages a sufiicientdistance to engage the jaws. The take-up device formoving the jaws is preferably in the form of a screw H which en-. g ascrew-threaded hole J formed in the bed plate. In order that a singlescrew may tilt both jaws, the latter are fixedly connected together inany suitable manner,

as for instance that shown wherein each jaw is formed with a laterallyextending portion 'K or K, the inner faces of which abut.

The jaws are clampedtogether by a pin or bolt L passing through thebodies of the jaws and the extensions K K. The upper end of the "screw Jin the construction shown engages the under faces of the abutments K K,and tilts the jaws upwardly around the pivot pin E, thus moving the pipeinan upward direction and clamping it against the chain D. The screw Jmay be turned by a lever or handle M or by any othersuitable device. e a

While I have shown and described one form of the invention, I do notwish to be limited thereto, as various changes may be made therein wihout departing from the spirit of the invention. The jaws may beconnected with the bed plate in any desired manner so as to be capableof tilting upon the connection. The take-up mechanism may be variouslyconstructed to secure the requisite movements of the jaws. .Otherchanges of like character may be made ,In my application even dateherewith I have describedand claimed broadly theuse of-a movable jaw,

the present application being based specifically on the tilting of thejaw.

What I claim is:- 1. In a chain pipe vise or the like, a jaw,

a chain,said jaw being mounted to tilt, and

means for tilting the jaw.

2. In achain pipe vise or the like, a jaw pivoted at one side, a chain,and means for tilting the jaw around its pivot.

3. In a chain pipe vise or the like, a bed plate, a jaw pivoted to saidbed plate, a chain connected with said bed plate, and means for tiltingthe jaw around its pivot. 4. In a chain pipe vise or the like, a bedplate, ajaw pivoted thereto, a chain, and means engaging the under sideof the jaw for tilting the latter around its pivot.

5. In a chain pipe vise or thelike, a bed plate, a pair of jaws pivotedthereto, a

chain connected to said bed plate between No. 668,063 filed on i saidjaws, a lock for the free end of said chain, and a screw passing throughsaid bed plate and hearing against the under sides of said jaws.

6. In a chain pipe Vise or the like, a bed plate, a pair of lugs carriedby said bed plate, a chain fixed between said lugs, a pair of jaws onthe out-er sides of said lugs, a pin passing through said jaws and lugs,and a screw operating against the under signed my name in the presenceof two sub- SCIlblIlg witnesses.

GEORGE AMBORN. WVitnesses CHARLES B. HARRIS, VICTOR F. RoBINs.

